How to set parindent in apa class?

Question

Usually one can adjust paragraph indent with

\setlength{\parindent}{0pt}

but that fails for the apa class. Is there another way to get rid of this indents in this class?

Answer 1

I must qualify my comment.

I used the two following examples to test my statement and I noticed that the command:

\setlength{\parindent}{0pt}

in the preamble will do the job.

test-file apa.cls

\documentclass[english]{apa}
\usepackage{babel,blindtext}
\setlength{\parindent}{0.0pt}
\begin{document}
\blindtext

\blindtext
\end{document}

test-file apa6.cls

\documentclass[english]{apa6}
\usepackage{babel,blindtext}
\setlength{\parindent}{0.0pt}
\begin{document}
\blindtext

\blindtext
\end{document}

In the next run I noticed that \maketitle set a new paragraph indention at the end of definition.

\documentclass[english]{apa}
\usepackage{babel,blindtext}
\setlength{\parindent}{0.0pt}
\author{Name}
\title{MWE}
\begin{document}
\maketitle
\blindtext

\blindtext
\end{document}

Based on this MWE (that is your task) you have to change \parindent after \maketitle

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Proof: A minimal working example (MWE) ist the best way to illustrate a problem. q.e.d.